Answer the following questions in detail−

The following are the monthly income of 10 families in a village.

Calculate mean average income per family.
Rs 550, Rs 650, Rs 700, Rs 400, Rs 550,
Rs 650, Rs 800, Rs 900, Rs 450, Rs 350

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Solution

$Mean = X = \frac{Σ x}{n} X = \frac{550 + 650 + 700 + 400 + 550 + 650 + 800 + 900 + 450 + 350}{10} = \frac{6000}{10} = 600$

Thus, mean income is Rs 600.

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Similar questions

Q. The average monthly income of a person in a certain family of

5

members is

R s . 1000

. What will be monthly average income of one person in the same family if the income of one person increased by

R s . 12, 000

per year?

Q. The average monthly income of a four members of a family is Rs 610.25 after the marriage of one girl the average income of the family becomes Rs 650 75, then the salary of married girl is

Q. In the following distribution :

Monthly income range (in Rs.)	Number of families
Income more than Rs. $10000$	$100$
Income more than Rs. $13000$	$85$
Income more than Rs. $16000$	$69$
Income more than Rs. $19000$	$50$
Income more than Rs. $22000$	$33$
Income more than Rs. $25000$	$15$

The numbers of families having income range (in Rs)

16000 - 19000

is:

Assumethere are four families in a country. The average per capita incomeof these families is Rs 5000. If the income of three families is Rs4000, Rs 7000 and Rs 3000 respectively, what is the income of thefourth family?

(i)Rs7500

(ii)Rs3000

(iii)Rs2000

(iv)Rs6000

Q. The following table shows the monthly income of 20 families. How many families have Rs 50000 as their monthly income.

Monthly income(Rs)	Number of families(frequency)
20,000	2
50,000	4
1,00,000	5
75,000	6
60,000	3

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Answer the following questions in detail− The following are the monthly income of 10 families in a village. Calculate mean average income per family. Rs 550, Rs 650, Rs 700, Rs 400, Rs 550, Rs 650, Rs 800, Rs 900, Rs 450, Rs 350

Mean=X=ΣxnX=550+650+700+400+550+650+800+900+450+35010=600010=600 Thus, mean income is Rs 600.

Answer the following questions in detail−

The following are the monthly income of 10 families in a village.

Calculate mean average income per family.
Rs 550, Rs 650, Rs 700, Rs 400, Rs 550,
Rs 650, Rs 800, Rs 900, Rs 450, Rs 350

$Mean = X = \frac{Σ x}{n} X = \frac{550 + 650 + 700 + 400 + 550 + 650 + 800 + 900 + 450 + 350}{10} = \frac{6000}{10} = 600$

Thus, mean income is Rs 600.